Question
A rectangular tank was 37 filled with water. After 90 litres of water was poured out from the tank, it became 114 full. How many litres of water were there in the tank at first?
3 m

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A rectangular tank was 37 filled with water. After 90 litres of water was poured out from the tank, it became 114 full. How many litres of water were there in the tank at first?